桥墩结构参数对单薄壁墩连续刚构桥地震响应的影响研究
A Study of the Effect of the Structural Parameters of a Pier on the Seismic Response of a Continuous Rigid Frame Bridge with a Single Thin Walled Pier
  
中文关键词:单薄壁墩连续刚构桥  动力特性  地震响应  结构参数  时程分析法
英文关键词:continuous rigid frame bridge with a single thin walled pier  dynamic characteristics  seismic response  structural parameters  time history analysis
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作者单位
唐杨 重庆交通大学土木工程学院重庆400074 
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中文摘要:
      为了分析桥墩结构参数对单薄壁墩连续刚构桥地震响应的影响,依托重庆市忠县龙潭渡大桥,采用线性时程分析法,通过改变单薄壁墩的截面形式和截面尺寸,研究实心墩和空心墩在截面尺寸变化的情况下对地震响应的影响。研究表明实心桥墩截面积不变的情况下,随着顺桥向截面尺寸的增加,单薄壁墩连续刚构桥的地震响应有所减弱;实心截面桥墩在横桥向截面尺寸不变的情况下随着顺桥向截面尺寸的增加,连续刚构桥的地震响应明显增强;在不改变矩形空心墩截面面积的情况下,矩形空心墩的空心截面尺寸对地震响应的影响不大;矩形空心墩空心截面尺寸的增加可以降低连续刚构桥的地震响应。
英文摘要:
      With the Longtandu Bridge in Zhong County of Chongqing as a practical example, and in order to analyze the effect of the structural parameters of a pier on the seismic response of a continuous rigid frame bridge with a single thin walled pier, a study is made of the effect of the change in the shape and the area of the cross section of the single thin walled pier, both solid and hollow, on the seismic response. Our studies show that, when the size of the transverse bridge direction cross section of a solid pier remains unchanged, and the along the bridge direction cross section of a solid pier increases, the seismic response of the continuous rigid frame bridge gets obviously great; when the area of the cross section of a rectangular hollow pier remains unchanged, the effect of the size of the cross section of the hollow pier on the seismic response is not great; the increase in the size of the cross section of the rectangular hollow pier may decrease the seismic response of the continuous rigid frame bridge.
唐杨.桥墩结构参数对单薄壁墩连续刚构桥地震响应的影响研究[J].国防交通工程与技术,2019,17(5):44~47,52
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